Note:
- If during or immediately after deleting the codes (when output "SGS" closed to ground) start the engine, the system will enter the code reading mode.
- Codes stored in the EEPROM memory cannot be erased by disconnecting the battery.
1. Make sure the steering wheel is in the straight ahead position.
2. Short the lead "SCS" to ground, to do this, connect the tester to the diagnostic connector "DLC" or connect the diagnostic socket "DLG" to the special device, and the conclusions "4" And "9" close the special devices with a wire.
3. Turn the steering wheel 45°to the left from the straight ahead position.
4. Turn the key in the ignition switch to position "ON" (The EPS indicator should come on for 4 seconds and then turn off).
5. After the indicator has gone out, turn the steering wheel to the straight ahead position (after 4 seconds, the indicator will light up for 4 seconds, after which it will turn off).
6. When the indicator lights up, turn the steering wheel 45°to the left again.
7. After the indicator goes out, return the wheel to the straight ahead position and check that after 4 seconds the indicator lights up twice for 0.3 seconds (at intervals of 0.3 seconds) and will go out.
Note: if the indicator does not light up twice, then the procedure for erasing codes has failed, in this case, turn off the ignition (OFF) and repeat the procedure starting from"W".
8. After the indicator goes out, disconnect the lead "SGS" from the mass.
9. Turn off the ignition ("OFF").
10. Read fault codes and verify normal code is displayed. Disconnect lead "SGS" from the mass.
Note:
- If erasing codes fails and output "SGS" shorted to ground, the indicator will be on until the engine starts or the output is disconnected "SGS" from the mass.
- see picture "Erasing fault codes".
Reading trouble codes.
Erasing fault codes.
Table. EPS Diagnostic Trouble Codes
Table. Checking signals on the connector pin "A" EPS control unit
Table. Checking the Signals at the Connector Pins "IN" EPS control unit